Lockwood EMZ4-DM Electromagnetic Double Maglock Monitored 560kg 12/24VDC

Product SKU: 770300-112

Product Overview

The Lockwood EMZ4-DM Electromagnetic Double Maglock Monitored 560kg 12/24VDC is a powerful magnetic locking solution designed for double door access control applications. Built as part of the Lockwood Padde Series Z4 range, this double maglock provides strong holding force and dependable fail-safe operation for commercial security installations. Its surface-mounted design allows installation on timber, aluminium or steel doors, while integrated monitoring outputs provide accurate feedback on door and lock status for security systems.

Why Choose the EMZ4-DM

The EMZ4-DM is engineered for environments where strong magnetic locking and reliable access control integration are required across double door openings. With dual electromagnets delivering combined holding force, the lock provides dependable security for busy commercial entrances. The monitored design allows security systems to verify both door position and magnetic bond status, improving operational awareness. Silent electromagnetic operation and minimal moving parts reduce maintenance requirements while ensuring smooth daily use.

Key Capabilities

Key Features

• Dual Magnetic Lock Design: Provides secure locking for double doors using two electromagnets mounted along a single housing.

• Dual Voltage 12VDC / 24VDC: Supports site-selectable voltage options, making integration with different access control systems straightforward.

• High Holding Strength: Combined holding force of up to approximately 560kg helps maintain secure door closure in commercial access control environments.

• Hall-Effect Bond Monitoring: Detects whether the magnet is energised and properly bonded to the armature plate, confirming the door is locked.

• Reed Switch Door Monitoring: An integrated reed switch monitors door position independently, helping systems detect whether the door is open or closed.

• Silent Electromagnetic Operation: With no mechanical latching components, the lock operates quietly without buzzing or mechanical wear.

Specifications Summary

• Model: EMZ4-DM
• Product Type: Double electromagnetic maglock
• Door Type: Double doors
• Holding Force: Approximately 560kg combined
• Operating Voltage: 12VDC or 24VDC
• Current Draw: 900mA @ 12VDC / 450mA @ 24VDC
• Operation: Fail-safe (unlocks when power removed)
• Monitoring: Hall-effect bond monitoring and reed switch door monitoring
• Dimensions: Approx. 476mm × 48mm × 27mm
• Operating Temperature: −10°C to +55°C
• Mounting Type: Surface mount
• Fire Rating: Suitable for approved fire door assemblies
• Construction: Aluminium housing with steel armature plates

Ideal Use Cases

• Double Door Entrances – Designed for wide entryways where two door leaves require magnetic locking.
• Commercial Office Buildings – Secure controlled entry using card readers, keypads or intercom systems.
• Healthcare and Education Facilities – Reliable door security for busy environments with monitored door status.
• Access Control Systems – Ideal for installations requiring fail-safe operation and integrated monitoring.

FAQs

1. How does a double maglock work?
   A double maglock contains two electromagnetic magnets within one housing. Each magnet aligns with an armature plate mounted on the corresponding door leaf. When power is applied, the magnets create strong magnetic bonds with the armature plates, holding both doors closed simultaneously. When power is removed, the magnetic force disappears and the doors can open.
2. What does fail-safe mean for an electromagnetic lock?
   Fail-safe means the lock releases automatically when electrical power is removed. This behaviour is commonly required for doors connected to fire safety or emergency exit systems because it allows occupants to exit the building if power fails or alarms are triggered.
3. What monitoring functions does the EMZ4-DM provide?
   The EMZ4-DM includes two types of monitoring. Hall-effect bond monitoring confirms that the magnet is energised and properly bonded to the armature plate, while a reed switch monitors door position. Together these signals allow an access control system to determine whether the door is closed and securely locked.